I am actually a diver, but only dove in warm waters where I could rent full gear, on vacation. So I don't have gear for my wife to try.
I like to get my wife practicing snorkeling. There are cheaper ones in other stores, but this one at Costco seems good. Don't usually find dry snorkel at that price. But on the other hand it is still not so cheap as throw-away trial type. Because it is in a plastic encasing, it's not something she can try before buying.
Thanks for all the advise. I think I'll actually buy this set, to have my wife practice. Costco also sells 2mm shorties at less than Cad$50 -- now that's a good price.